diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig
index 65b4f95e4bff6..4fb5a137b335e 100644
--- a/arch/riscv/configs/defconfig
+++ b/arch/riscv/configs/defconfig
@@ -276,3 +276,5 @@ CONFIG_USB_ONBOARD_HUB=m
 CONFIG_USB_GADGET=m
 CONFIG_TYPEC=m
 CONFIG_USB_ROLE_SWITCH=m
+CONFIG_IIO=y
+CONFIG_THEAD_TH1520_ADC=m